I made a swivel mount for a laser pointer that fits on my shooting stick. Jam the shooting stick in the ground and point the laser to your bullet impact point.

I used plastic copper pipe mounting clips, some threaded stock and a few nuts to make mine.

Things look a different from where you shot and after you've walked out into a grain field. It can be really hard to pick up a blood trail. Finding the exact distance and location can be bit disorienting (impossible) in the dark.

Waidmannsheil!